Autonomous Emergency Braking for Cross-Traffic Collision Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional autonomous emergency braking systems only prevent collisions with vehicles moving in the same lane, failing to address risks from vehicles traveling in different directions, particularly at intersections.
Innovation Solution
An autonomous emergency braking apparatus and method that estimates the collision point in time with a vehicle moving in a different direction by calculating and comparing the time required for the self vehicle and the relative vehicle to avoid a collision, determining the appropriate braking point and force through a processor using sensor-collected data, and implementing full or partial braking accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the autonomous emergency braking apparatus only monitors vehicles in the same lane, then the system complexity is reduced and operation is simplified, but the collision avoidance capability against vehicles moving in different directions is lost
Solution Approach 1:
The autonomous emergency braking apparatus is enhanced to perform multiple functions: it not only detects vehicles in the same lane but also detects vehicles in different directions and predicts potential collision points. This multi-functionality allows the system to maintain comprehensive collision avoidance capability while managing complexity through integrated processing
2Measurement precision
If the apparatus calculates and compares first time and second time for collision avoidance, then the collision avoidance accuracy is improved, but the processing time and computational complexity increase
Solution Approach 1:
The system performs preliminary calculations by estimating collision point times before actual collision risks materialize. By pre-calculating first time (for self vehicle) and second time (for relative vehicle) based on current trajectories, the system prepares collision avoidance strategies in advance, enabling rapid response when collisions become imminent without excessive processing delays
Data Source
AI summary
An autonomous emergency braking apparatus comprises: a relative vehicle information collector that collects relative vehicle information regarding a relative vehicle using a plurality of sensors in a vehicle; a self vehicle information collector that collects self vehicle information regarding a self vehicle using the plurality of sensors; and a processor configured to calculate and compare a first time for a collision avoidance of the self vehicle and a second time for a collision avoidance of the relative vehicle based on the relative vehicle information and the self vehicle information, and determine a braking point of time and a required braking force based on the comparison of the first time and the second time.